Partialism is sexual interest with an exclusive focus on a specific part of the body other than the genitals.
Partialism is categorised as a fetishistic disorder in the DSM-5 of the American Psychiatric Association if it causes significant psychosocial distress for the person or has detrimental effects on important areas of their life. In the DSM-IV, it was considered a separate paraphilia (not otherwise specified), but was merged into fetishistic disorder by the DSM-5. Individuals with partialism sometimes describe the anatomy of interest to them as having equal or greater erotic attraction for them as do the genitals.
Partialism occurs in heterosexual, bisexual, and homosexual individuals. The foot is considered one of the most common partialisms.